[INFO] crate flake 0.0.1 is already in cache
[INFO] extracting crate flake 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/flake/0.0.1
[INFO] extracting crate flake 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/flake/0.0.1
[INFO] validating manifest of flake-0.0.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of flake-0.0.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing flake-0.0.1
[INFO] finished frobbing flake-0.0.1
[INFO] frobbed toml for flake-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/flake/0.0.1/Cargo.toml
[INFO] started frobbing flake-0.0.1
[INFO] finished frobbing flake-0.0.1
[INFO] frobbed toml for flake-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/flake/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing flake-0.0.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/flake/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] f6baccad727576fe607bd9905bc5f9a6f36a9535909bb419c0aecf4e94bea5df
[INFO] running `"docker" "start" "-a" "f6baccad727576fe607bd9905bc5f9a6f36a9535909bb419c0aecf4e94bea5df"`
[INFO] [stderr]    Compiling flake v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "f6baccad727576fe607bd9905bc5f9a6f36a9535909bb419c0aecf4e94bea5df"`
[INFO] running `"docker" "rm" "-f" "f6baccad727576fe607bd9905bc5f9a6f36a9535909bb419c0aecf4e94bea5df"`
[INFO] [stdout] f6baccad727576fe607bd9905bc5f9a6f36a9535909bb419c0aecf4e94bea5df
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/flake/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 500284a4b9a12823e7792d958aa01000e9a6c75495048044bcf4306cb4f6cd87
[INFO] running `"docker" "start" "-a" "500284a4b9a12823e7792d958aa01000e9a6c75495048044bcf4306cb4f6cd87"`
[INFO] [stderr]    Compiling flake v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `TIMESTAMP_MASK`
[INFO] [stderr]  --> src/tests/mod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const TIMESTAMP_MASK: u64 = 0xFFFFFFFFFFC00000;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "500284a4b9a12823e7792d958aa01000e9a6c75495048044bcf4306cb4f6cd87"`
[INFO] running `"docker" "rm" "-f" "500284a4b9a12823e7792d958aa01000e9a6c75495048044bcf4306cb4f6cd87"`
[INFO] [stdout] 500284a4b9a12823e7792d958aa01000e9a6c75495048044bcf4306cb4f6cd87
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/flake/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] b729e6bf322e6c3a4263dc08df0b3ef8e26f58b78e7e7d86a7dbeff3206c4ccf
[INFO] running `"docker" "start" "-a" "b729e6bf322e6c3a4263dc08df0b3ef8e26f58b78e7e7d86a7dbeff3206c4ccf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/flake-87ef7b9de9d2f610
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flake
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::correct_worker_id ... ok
[INFO] [stdout] test tests::generate_id ... ok
[INFO] [stdout] test tests::generate_increasing_ids ... ok
[INFO] [stdout] test tests::correct_datacenter_id ... ok
[INFO] [stdout] test tests::proper_mask_worker_id ... ok
[INFO] [stdout] test tests::roll_over_sequence_id ... ok
[INFO] [stdout] test tests::proper_mask_timestamp ... ok
[INFO] [stdout] test tests::proper_mask_datacenter_id ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b729e6bf322e6c3a4263dc08df0b3ef8e26f58b78e7e7d86a7dbeff3206c4ccf"`
[INFO] running `"docker" "rm" "-f" "b729e6bf322e6c3a4263dc08df0b3ef8e26f58b78e7e7d86a7dbeff3206c4ccf"`
[INFO] [stdout] b729e6bf322e6c3a4263dc08df0b3ef8e26f58b78e7e7d86a7dbeff3206c4ccf